<?php

class AttendanceController extends Controller
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */
	public $layout = '/layouts/triple_sidebar';

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
			'postOnly + delete', // we only allow deletion via POST request
		);
	}

	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view','create','update','admin','delete','createattendance'),
				'roles'=>array('teacher'),
				'users'=>array('*'),
			),
			/*array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('admin','delete'),
				'users'=>array('admin'),
			),*/
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$model2 = new Attendance;
		$students = $this->getGroup($id);
		$dates = array();
		if($students != null){
					$dates = $this->getColumnNames($students[0]->users_id);
				}
		if(isset($_POST['Attendance'])){
				foreach($students as $st){
					foreach(Attendance::model()->findAllByAttributes(array('users_id'=>$st->users_id)) as $g0){
						if(isset($_POST['Attendance'][$g0->id_not_needed])){
							$model3 = new Attendance;
							$model3->attributes = $_POST['Attendance'][$g0->id_not_needed];
							$temp = Attendance::model()->findByPk($g0->id_not_needed);
							$temp->attendance = $model3->attendance;
							$temp->update();
							//$this->refresh();
							//$this->redirect(array('view', 'id'=>1));
							}
						}
					}
				}
		$this->render('view',array(
			'model'=>$this->loadGroupModel($id),
			'students'=>$students,
			'dates'=>$dates,
			'model2'=>$model2,
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new Attendance;

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Attendance']))
		{
			$model->attributes=$_POST['Attendance'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id_not_needed));
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		// $this->performAjaxValidation($model);

		if(isset($_POST['Attendance']))
		{
			$model->attributes=$_POST['Attendance'];
			if($model->save())
				$this->redirect(array('view','id'=>$model->id_not_needed));
		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{
		$this->loadModel($id)->delete();

		// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
		if(!isset($_GET['ajax']))
			$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('Attendance');
		$this->render('index',array(
			'dataProvider'=>$dataProvider,
		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Attendance('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Attendance']))
			$model->attributes=$_GET['Attendance'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer $id the ID of the model to be loaded
	 * @return Attendance the loaded model
	 * @throws CHttpException
	 */
	public function loadModel($id)
	{
		$model=Attendance::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param Attendance $model the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='attendance-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
	
	public function getGroup($gid){
			$group_students = UserProfiles::model()->findAllByAttributes(array('group_id'=>$gid));
			return $group_students;
		}
		
	public function loadGroupModel($gid){
			$group = Group::model()->findByPk($gid);
			if($group === null){
					throw new CHttpException(404, 'The requested page does not exist.');
				}
			return $group;
		}
		
	public function getColumnNames($sid){
			$attendances = Attendance::model()->findAllByAttributes(array('users_id'=>$sid));
			$dates = array(); $counter = 0;
			foreach($attendances as $a){
				$dates[$counter] = $a->DateCreated;
				$counter++;
				}
			$sorted_dates = array_unique($dates);
			return $sorted_dates;
		}
		
	public function actionCreateAttendance(){
			$created_attendance = new Attendance;
			$created_attendance->attributes = $_POST['Attendance'];
			$id = $created_attendance->attendance;
			$student_lists = $this->getGroup($id);
			foreach($student_lists as $st){
					$new_attendance = new Attendance;
					$new_attendance->users_id = $st->users_id;
					$new_attendance->attendance = 1;
					$new_attendance->DateCreated = $created_attendance->DateCreated;
					$new_attendance->insert();
					$this->redirect(array('view', 'id'=>$id));
				}
		}
}
